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Radiant|Natural|GIA

1.51ct I SI1 Radiant Natural Diamond

EX • I/SI1 • GIA 6552916146

Certificate GIA 6552916146

Diamond specifications and retailer prices

From HK$41,851 HKD
$5,334 USD
As of November 2, 2026
Save HK$33,989 HKD (45%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: HK$75,840 HKD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.51ct natural radiant diamond

This 1.51ct natural radiant sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6552916146. Listed at 13 retailers as of October 30, 2026, with prices from HK$41,851 to HK$75,840, a HK$33,989 spread on the same certified stone. NZ Jewellers lists it at HK$75,840. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.51
Carat
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6552916146
Dimensions7.98 × 5.71 × 3.83 mm
L/W Ratio1.40
Girdle conditionPolished
Culet sizeNone
Key to symbols
Feather, Crystal, Needle
Top View
7.98 mm5.71 mm1.51 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6552916146
Side View
Table 66.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 67.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: HK$75,840 HKD|Low: HK$40,062 HKD|High: HK$79,199 HKD|Avg: HK$51,503 HKD|-4.2%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 3, 2026
Retailer 4HK$41,851 HKD
Retailer 6HK$43,027 HKD
Retailer 3HK$43,271 HKD
Retailer 2HK$44,237 HKD
Retailer 10HK$45,343 HKD
Retailer 12HK$45,343 HKD
Retailer 13HK$45,343 HKD
Retailer 5HK$46,812 HKD
Retailer 7HK$49,538 HKD
Retailer 11HK$52,326 HKD
Retailer 9HK$55,715 HKD
Retailer 8HK$66,812 HKD
NZ JewellersHK$75,840 HKD

27 data points across 13 retailers

13 retailersHK$41,851 HKD to HK$75,840 HKD

A
Cheapest Retailer
-
HK$41,851 HKD
$5,334 USD
Final sale: no returns
A
Retailer 2
-
HK$43,027 HKD
£4,318 GBP
View
A
Retailer 3
-
HK$43,271 HKD
$5,515 USD
View
A
Retailer 4
-
HK$44,237 HKD
£4,439 GBP
View
A
Retailer 5
-
HK$45,343 HKD
$5,779 USD
View
A
Retailer 6
-
HK$45,343 HKD
$5,779 USD
View
A
Retailer 7
-
HK$45,343 HKD
$5,779 USD
View
Retailer 8
-
HK$46,812 HKD
A$9,179 AUD
View
Price last confirmed 24 days ago
B+
Retailer 9
-
HK$49,538 HKD
€6,013 EUR
View
B+
Retailer 10
-
HK$52,326 HKD
$6,669 USD
View
B+
Retailer 11
-
HK$55,715 HKD
ZAR 114,716 ZAR
View
B
Retailer 12
-
HK$66,812 HKD
£6,705 GBP
View
Most Expensive
B
NZ Jewellers
fa29a53a-a90a-4ea1-9896-b07372a6fe54 · Oct 30
HK$75,840 HKD
$9,666 USD
View
12 more retailers have this diamond
Prices start from HK$41,851 HKDSave up to HK$33,989 HKD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.51ct Radiant
HK$41,851 HKD